add group name 'ddms', group id 3012 and remove umask for group

Signed-off-by: Nwuchunbo <wuchunbo1@huawei.com>

services/etc/group

@@ -27,6 +27,7 @@ net_bw_acct:x:3007:
 readproc:x:3009:
 wakelock:x:3010:
 uhid:x:3011:
+ddms:x:3012:
 access_token:x:3020:
 misc:x:9998:
 app:x:10000:

services/etc/passwd

@@ -27,6 +27,7 @@ net_bw_acct:x:3007:3007:::/bin/false
 readproc:x:3009:3009:::/bin/false
 wakelock:x:3010:3010:::/bin/false
 uhid:x:3011:3011:::/bin/false
+ddms:x:3012:3012:::/bin/false
 access_token:x:3020:3020:::/bin/false
 misc:x:9998:9998:::/bin/false
 app:x:10000:10000:::/bin/false

services/init/include/init_service.h

@@ -51,7 +51,7 @@ extern "C" {
 
 #define FULL_CAP 0xFFFFFFFF
 // init
-#define DEFAULT_UMASK_INIT 022
+#define DEFAULT_UMASK_INIT 002
 
 #define CAP_NUM 2